HP 33s Scientific manual KeysDisplayDescription, Value

‘ /#º!-)ºº!:

 / /

Terminates the equation and displays the left end. Checksum and length.

g (acceleration due to gravity) is included as a variable so you can change it for different units (9.8 m/s2 or 32.2 ft/s2 ).

Calculate how many meters an object falls in 5 seconds, starting from rest. Since Equation mode is turned on and the desired equation is already in the display, you can start solving for D:

Keys:Display:Description:

	#_
D	#@
	value
0 g	!@
	value
5 g	@
	value
9.8 g	#
	/
	)

Prompts for unknown variable.

Selects D; prompts for V.

Stores 0 in V; prompts for T.

Stores 5 in T; prompts for G.

Stores 9.8 in G; solves for D.

Try another calculation using the same equation: how long does it take an object to fall 500 meters from rest?

Keys:Display:Description:

H	/#º!-)ºº!:
T	@
	)
500 g	#@
	)
g	@
	)
g	#
	!/
	)

Displays the equation. Solves for T; prompts for D.

Stores 500 in D; prompts for V.

Retains 0 in V; prompts for G.

Retains 9.8 in G; solves for T.

Solving Equations 7–3